Firesheep, the little addon for Firefox that allowed an attacker to steal cookies from people browsing the web from public hotspots, now has a scarier, meaner successor called Cookie Cadger. Development on the Firesheep project has stopped after the vast majority of social network services defaulted user traffic to SSL/TLS, but users who need a real-live demonstration on the dangers of unencrypted Wi-Fi can now tinker with a new open-source pen-testing tool: Cookie Cadger.